<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        /*设置 p div span h1 文字有颜色是红色 */
        /* 选择器1,选择器2 */
        p,div,span,h1 {
            color: red;
        }
    </style>
</head>
<body>
        <p>ppp</p>
        <div>div</div>
        <span>span</span>
        <h1>h1</h1>

        <h2>h2</h2>
</body>
</html>